Nuclear energy, because uranium is a nuclear fuel for nuclear power reactors.
radioactive element like uranium, plutonium......etc depends which type of nuclear reactor.
The mass of uranium needed for a nuclear power reactor depend on the type and the power of this reactor. For a medium size reactor - 100 t.
Depending on the type and the power of the nuclear reactor. An example; a CANDU type reactor of 700 MW need 700 kg uranium-235 and only ca. 500 kg are "burned".
A nuclear reactor is a plant which deliver electricity and (or) heat.The function principle is the release of energy from nuclear fission of fissile materials as the isotope uranium-235.
Approx. 1-2 years, depending on the type of reactor and fuel.
Depending on: - the type of the nuclear reactor - the electrical power of the nuclear reactor - the type of the nuclear fuel - the enrichment of uranium - the estimated burnup of the nuclear fuel etc.
Depending on the reactor type and power: from 1 kg to more than 100 000 kg.
Approx. 115 US $/kg of the oxide U3O8 (but not for the nuclear grade quality, which is more expensive) - as to August 2011.
The quantity depends on: the type of the reactor, power of the reactor, enrichment of uraniu, chemical form of the fuel, etc. For a research reactor some kilograms, for a power reactor more than 100 tonnes/year.
CANDU Reactors are specifically designed such that they do not require enriched uranium, and can operate entirely on naturally-occurring uranium. A CANDU design is generally used by parties that do not desire uranium enrichment facilities, due to the cost of those facilities. That said, a CANDU reactor CAN use enriched uranium, they are fully capable of supporting that fuel type.
No, nuclear energy is not renewable nor sustainable. For nuclear fission to work, it requires a special type (isotope) of uranium. There is a finite amount of uranium on the planet, therefore this is not renewable. Also, the nuclear waste produced is not sustainable. An example of renewable energy would be a wind turbine.
Either highly enriched uranium-235 or reactor produced plutonium.